What is the airport code for Sao Paulo, Brazil?

The airport code for Sao Paulo, Brazil is GRU. This code represents São Paulo/Guarulhos–Governador André Franco Montoro International Airport, which is the main international airport serving the city. GRU is widely recognized and utilized in airline operations and ticketing for flights entering and departing from São Paulo.

The other options correspond to different airports around the world, which are not related to São Paulo. For instance, SAV refers to Savannah/Hilton Head International Airport in Georgia, USA; SEA is the airport code for Seattle-Tacoma International Airport in Washington, USA; and STI is the code for Cibao International Airport in the Dominican Republic. Thus, GRU is specifically associated with Sao Paulo, making it the correct choice for this question.